HESI A2 BIOLOGY

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In the hierarchic system of classification, which of the following is the least inclusive? After observing an event, you develop an explanation. This statement is referred to as which of the follow... ing? A molecule of water is bonded with another molecule of water by what type of bond? Which of the following is a benefit of the intermolecular hydrogn bonding of water? Of all the molecules that are significant to biology, which of the following are considered the most important? Lipids are better known as fats, but what are they specifically? What are the two categories of fatty acids? How do phospholipids function in cells? Which of the biologic molecules are considered the most significant contributor to cellular function? Proteins are polymers of which of the following?  Which of the following proteins catalyze different reactions or processes? Which of the biologic molecules are components of the molecules of inheritance? What is the sum of all chemical reactions that occur in an organism? In a cell, reactions take place in a series of steps called: What is the fundamental unit of biology? Which type of cell contains no defined nucleus? What is the primary purpose of the flagella on the surface of cells? Which cell organelle functions to transport materials from the endoplasmic reticulum throughout the cell? Which of the following are the distinct organelles that produce cell energy? Which component of the cell contributes to the protection, communication, and passage of substances into and out of the cell? The cell membrane consists of a bilayer of phospholipids with proteins, cholesterol, and glycoproteins. This bilayer creates a hydrophobic region between two layers of lipids, making it which of the following? What are the two catabolic pathways that lead to cellular energy production? What is the first step in the conversion of glucose to pyruvate? Which step in cellular respiration yields the greatest amount of ATP? During cell respiration, the conversion of glucose results in an overall production of how many ATP molecules? What is the function of water in photosynthesis? Cells reproduce by different processes, all of which fall into what two catagories? Which of the following describes how a bacterium reproduces? Regarding mitosis and cytokinesis, one difference between higher plants and animals is that in plants: During which phase of cell reproduction does the cell divide forming two separate identical cells? How does meiosis differ from mitosis? At which phase of meiosis does crossing over occur? A cell division occurs in a human. The resulting cells contain 23 chromosomes. This is a description of gametes formed by which process? If you wanted to determine the probability of a genotype, which of the following would you use? Which of the following terms is used to describe the appearance of the organism? What is the probability that a recessive trait would be expressed in offspring if two parents who are both heterozygous for the desired trait were crossed? Because genetics is the study of heredity, many human disorders can be determined by studying a person's chromosomes or by creating which of the following? Why is DNA important for metabolic activities of the cell? During protein synthesis, what process uses an RNA strand to produce a complementary strand of DNA? During the process of transcription, a sequence of RNA is generated in which the RNA base cytosine (C) is inserted complementary to the DNA base guanine (G). Which RNA base is inserted complementary to the DNA base thymine (T)? Why is polarity the most important characteristic of water? Athletes are often concerned with the question of what they need in their diets to increase muscle mass and strength. What biological molecule would you recommend that would accomplish this? Which organelle wold you expect to be present in a cell responsible for detoxifying multiple molecules? A cell from heart muscle would more than likely contain an unusual high proportion of: Which part of cellular respiration produces the greatest amount of ATP? When plants do not receive enough water their photosynthetic rated drops. This is because: Which of the following statements is true about the Krebs cycle and the Calvin cycle? Why is it important for cells to undergo mitosis? 72 Chromosomes undergo meiosis. How many chromosomes will be in each gamete? Which of the following shows how information is transformed to make a protein? What is the typical result of mitosis in humans? How does water affect the temperate of a living thing What are the products to kreb cycle? What kind of none connects sugar and phosphate in DNA What is the second part of an organism;s scientific name? How are lipids different that other organic molecules? What is a cohesive property? What is adhesive property Which hormone is produced by the pineal gland? what is the name of the organelle that organizes protein synthesis During which phase is the chromosome number reduced from diploid to haploid What is the name for a cell that does not contain a nucleus? What is the name of the physical presentation of an organism's genes? Which of the following forms of water is the densest? What is the longest phase in the life of a cell What is not found in bacterial cell? What kind of macromolecule is hemoglobin Which of the following is not involved in translation? tRNA, mRNA, ribosome, DNA Which of the following is necessary for cell diffusion How many different types of nucleotides are there in DNA Which of the following cell types has no nucleus Which part of the aerobic respiration uses oxygen What is the most general taxonomic category What is the name of the process by which a bacterial cell splits into two new cells? Name the taxonomical classification of living things, in order of increasing specificity. Name the 5 biological kingdom Name the hierarchal levels of life from simplest to more complex What is the lowest level of organization with all the properties of life What are the three domains of living organisms Phospholipid bilayer has ____ head and ___ tail Cytoplasm Nucleus nucleolus Rough Endoplasmic Reticulum Smooth Endoplasmic Reticulum Golgi Body Vesicles lysosomes Peroxisomes mitochondria Chloroplast Cytoskeleton Cell Wall What organelle is responsible for protein synthesis? Why is yeast used to make bread rise? How is mitosis different from meiosis? A cell is in a solution in which the concentration of the solutes is higher inside the cell than outside the cell. What would you expect to happen to the cell? What is the phloem tissue in plant stems? Physical factors such temperature and pH can alter enzyme activity because they have an effect on the enzyme's ___. What kind of symbiosis exists between a pneumonia bacterium and a human Beeswax is an example of what kind of molecule In which phase of cell division do the chromosome replicate What happens to glucose during glycolysis? How do RNA and DNA derive their names? If a bacteria are placed in a strong solution of salt water, they will shrink as water moves out of the bacteria. What is this process called? What does an enzyme do? Two organisms live in a relationship from which both benefit. What is this called? Which structure is found in protists but not in monerans? rod shaped bacteria spiral shaped bacteria round shaped bacteria What is the term for the breakdown of glycogen into glucose subunits? Hydrolysis Anabolism Catabolism Which organelle provides storage space for the cell? What is a byproduct of fermentation in muscle cells? Telophase Names a final step in protein synthesis Foods with a high salt content do not have to be refrigerated. What natural process prevents these foods from spoiling? What is necessary for active transport through a membrane to take place? What are saturated fats saturated with? How many pairs of homologous chromosomes do humans have? What happens to mRNA as it reached the cytoplasm? [Show More]

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